Improvement in jiggers for separating ore



W. H. PLUMB. liggers for Separating Bra. {140,535.

PatentedJulyi H I HIHI Le flu AM. PHOTOUTHOGRAPHIC 00 MY. (DSBORNESPROCESS) U ITED Srarns YVILLIAM H. PLUMB, OF PATERSON, NEW JERSEY,ASSIGNOR TO JOSEPH A. STERLING, OF NEW YORK, N. Y.

IMPROVEMENT IN .JIGGERS FOR SEPARATlNG ORE.

Specification forming part of Letters Patent No. 140,535, dated July 1,1873; application filed May 6, 1873.

To all whom it may concern:

Be it known that I, W'ILLIAM H. PLUMB, of Paterson, in the county ofPassaic and State of New Jersey, have invented an Improved-Ore-Separator, of which the following is a specification:

Figure 1 is a vertical central section of my improved ore-separator.Fig. 2 is a horizontal section of the same on the line 0 c, Fig. 1. Fig.3 isa top view thereof, partly in section, the line k is, Fig. 1,indicating the plane of the section. Fig. 4 is adetail vertical section,showing the relative positions of the shaker, adjustable ring, andstationary lower funnel.

Similar letters of reference indicate correspondin g parts in all thefigures.

The object of this invention is to produce an apparatus for separatingvarious kinds of ore in accordance with their varying degrees ofspecific gravity and varying quantitative proportions, such as coal orslate or other various kinds of ores. The invention consists in theapplication, above a shaking or reciprocating bottom that receives theore to be separated, of a vertically-adjustable ring, which is raised orlowered in conformity to the proportionate quantities of the varyingkinds of ores, and to their respective degrees ofspecific gravity. Theinvention also consists in providing said ring with a flange thatprojects outwardly and downwardly, and overlaps or enters the mouth of astationary funnel, into which the heavier material is discharged fromthe shaker, while the lighter material passes over the top of the ringinto an outer receptacle, being, by said flange, preventedfrom enteringthe funnel or inner receptacle. The invention also consists insuspending the aforementioned ring, by means of a yoke, from a nut thatis fitted to a threaded portion of the rod from which the shaking-plateis suspended. Finally, the invention consists in combining with thesubject-matter above mentioned a surrounding tub, which receives thewater used for washing the ore near the middie, and discharges it overthe top, the water aiding in its upward flow to separate the severalkinds of ore in the desiredmanner.

In the accompanying drawing, the letter A represents the embracing tubor outer vessel containing my improved ore-separating device. B is aframe arranged above said tub, and supported thereon or otherwise heldin suitable position. This frame B carries a horizontal driving-shaft,O, to which rotary motion is imparted by a belt or otherwise, and whichconnects, by a crank, a, with a vertical rod, D, that is suspendedcentrally into the tub A, as shown. From the lower end of the rod D issuspended a (preferably circular and slightly conical) grate orplatform, E, which constitutes a support for the ore to be separated,such ore being conveyed to the grateE through a stationary funnel ortube, F, which is secured in the frameB and embraces the rod D, as shownin Fig. 1. WVhen the shaft 0 is revolved the rod D will be moved up anddown, the grate E, therefore, also reciprocating to impart the requisiteshaking motion to the ore it supports. The grate E is properlyperforated for the passage of water, discharge of dust, &c. G is afunnel placed within the lower part of the tub A, and embracing with itsupper part the grate E, as shown in Fig. 1, and more clearly set out inFig. 4. This funnel Gr, being at its upper part larger in diameter thanthe grate E, receives the matter discharged over the edge of E andconveys it to the bottom of the tub A, where a centarl opening, I),is-provided for the discharge of such matter. His a ring about as largein diameter as the grate E, and suspended by a yoke, I, from a nut, J,which is secured upon a threaded upper portion of the rod D. The yoke Iis swiveled on the nut, as shown, so that by turning the latter the yokewith the ring H may be moved up and down at will.

'An outwardly and downwardly projecting at the top of said tub through agate, f.

The ore to be separated is poured through Fin.

the funnel F upon the grate E, while the ring H is lowered, the saidgate being properly shaken or vibrated as soon as the supply of ore hasbeen placed upon it. During such vibration the ore will necessarilyadjust itself on the grate E, the heavier settling to the bottom, thelighter coming to the top. When so much ore has been placed upon thegrate that it will reach to or above the rim of the ring H the latter israised sufficient to allow the heavier settlements of the ore to rolloff the grate into the funnel G, while the lighter material will flowover the top of the ring H into the tub A, thence to be dischargedthrough openings 9. The material is constantlybeing supplied after thering has once been adjusted to its proper. position with reference tothe grate, in such proportions that the lighter material, raised duringthe vibrations of the grate, will be brought to and above the upper edgeof the ring, and in position therefore to be discharged into the tub,while the heavier material will, from the grate, enter the funnel G.

I claim as my invention, and desire to secure by Letters Patent- 1. Theore-separator, containing the reciprocating grate E in conjunction withthe vertically-adjustable ring H, which ring is arranged above andnearly in line with the rim of the grate, substantially as and for thepur pose specified.

2. The combination of the ring H, having the outwardly and downwardlyprojecting flange d, with the lower stationary funnel G, and with thegrate E, as and for the purpose set forth.

' 3. The yoke I connected by the nut J with the stem D of the grate,"andserving to support the adjustable ring H, as set forth.

4. The tub or outer vessel A, receiving the water-supply at or near itsmiddle and discharging the same from the top, and embracing thereciprocating grate E and adjustable ring H and stationary funnel G, asand for the purpose specified. \V. H. PLUMB.

\Vitnesses:

HENRY T. BROWN, MICHAEL RYAN.

